The SC809 chassis features twin dual processor MB support for Supermicro's unique 1U Twin servers, twin 4 hot-swap 2.5" SAS/SATA hard drive bays and high-efficiency 780W/980W (90%+) and Gold Level 1200W power supply. When incorporating two server boards into a single 1U system, the SC809 offers double the computing power in its energy efficient, earth friendly design, boosting energy conservation as well as systems' performance.